Verioth, Sky Forger

{b/g}{b/r}{r/g}: Ambush Attack (Exile this creature when it attacks. Return it to the battlefield at the beginning of your next combat phase. Verioth, Skyforger gets haste, +3/+3 and is unblockable.)
Flying
Whenever a creature you control enters the battlefield from exile, this creature gets +2/+0 until end of turn.